ORAL CANCER NOVEL TREATMENTS AND APPROACHES

The aggressive tumour known as oral cancer can metastasize, produce a high fatality rate, and infect nearby tissue. Surgery, chemotherapy, and radiation therapy, for example, are common treatment options that, when used in clinical settings, have both minimal drawbacks and major side effects. Currently, oral therapeutic medication delivery using targeted drug administration is proving to be effective. In recent years, an effective alternative therapy known as “nanomedicine,” or using nanoplatforms to deliver drugs for the treatment of cancer, has evolved. Thanks to the use of nanoplatforms, drug delivery to the tumour site can be done precisely and with minimal drug degradation in the body. As a result, the drug's toxicity is diminished, its concentration at the tumour site is elevated, and its distribution to other organs is kept to minimum. We present a contemporary review of the development medication delivery targeted for the treatment of oral cancer in this article different oral delivery systems, including as cyclodextrins, liposomes, hydrogel-based forms, and nanolipids are highlighted and explored. Biomimetic systems, such as therapeutic vitamins, proteins, exosomes, and virus-like particles, with a focus on cancer treatment, are also described. The study concludes with a brief analysis of future applications for nanoplatforms in the treatment of oral cancer

ROLE OF CIRCULATING MIR-21 EXPRESSION PROFILES AND THEIR EMERGENCE AS POTENTIAL BIOMARKERS IN ORAL SQUAMOUS CELL CARCINOMA

Among the widest range of prevalent forms of cancer is oral carcinoma, which can develop anywhere in the mouth or even on the lips. Although there have been many advances in cancer treatment, the expected lifespan for OSCCs have indeed increased marginally. The load of OSCC is anticipated to increase in the near future, yet there is no sign of relief in view. Tumorigenesis is just one of the many physiological processes that can be controlled by microRNAs, a class noncoding endogenous RNAs. Several fibrosis disorders have been linked to miR- 21, and it has been utilised to distinguish oral and tongue cancer from healthy individuals. Studies empirically highlighted the significance of these transcripts as a predictor for prediction and diagnosis in OSCCs. Therefore, the present review summarizes the expression levels of miRNAs in OSCCs and evaluates their functioning in the progression or suppression of cancer. miR-21 can be considered as a prospective candidate for their translational use in OSCCs for early diagnosis prognosis surveillance and tailored treatment which should undergo further validation.

ROLE OF TUMOR MARKERS IN CERVICAL CARCINOGENESIS

Various types of tumor markers are currently being investigated to ascertain their capability in discriminating pre-cancerous lesions of cervix who have tendency for progression. The adequate treatment of such cases will check any chances of occurrence of carcinoma cervix in the population. The micro- RNAs are sensitive tumor markers but their high cost and sophisticated technique make them not feasible to be introduced in any cervical cancer screening program under Indian setup. Other tumor markers like claudins, p16, Ki67 etc are also very expensive. AgNOR pleomorphic counts and micronuclei counts are cheaper, the farmer being more reliable can be introduced in cytological screening program to identify high risk cases and can easily replace costly Human papilloma virus (HPV)- DNA testing.

Risk-factors and strategies for control of carcinoma cervix in India: hospital based cytological screening experience of 35 years.

PURPOSE: Role of risk factors in cervical carcinogenesis and strategies for control of the disease have been assessed from the accumulated cytological data, derived from 35 years of hospital-based screening in Lucknow, North India. MATERIALS AND METHODS: A total of 36,484 women have been cytologically screened during a span of 35 years (April 1971 - June 2005) in the Gynaecology out patient department (OPD) of Queen Mary's Hospital. RESULTS: The frequency of Squamous Intraepithelial Lesion (SIL) and carcinoma was found to be 7.2% and 0.6%, respectively, in the present study. The study revealed high age and parity as a predominant factor in cervical carcinogenesis, while viral sexually transmitted disease (STDs) -human papilloma virus (HPV) and Herpes simplex virus (HSV) were also largely associated with SIL cases. The study emphasized great value of clinically downstaging the cervical cancer by detecting cervical cancer in the early stage. The study also revealed a significant difference in the frequency of SIL in symptomatic and asymptomatic women. CONCLUSION: Based on the analyzed data, it was felt that single lifetime screening, which appears to be the most feasible and affordable mode for control of carcinoma cervix in developing countries like India, should be carried out in all women of high parity irrespective of age (with three or more children) and in older women above the age of 40 years irrespective of parity.

Talon cusp in the deciduous dentition: a case report.

Talon cusp is a type of developmental anomaly affecting coronal portion of tooth in cingulum region, rarely found in the deciduous dentition.

"Talon cusp-heredity origin"--a case report.

Talon cusp is a very unusual anomalous structure of tooth. The etiology is still unknown. It may be due to mal-interaction between ecto and mesoderm of epithelial bulgings present on premaxillary region at the time of complex odontogenesis. Genetics may have some role in the formation of Talon cusp. Talon cusp may cause clinical complications.

Electrokinetic energy conversion studies of alkaline solutions of uric acid, oxalic acid, L-cystine and L-tyrosine across urinary bladder membranes.

Electrokinetic studies of alkaline solutions of oxalic acid, cystine and tyrosine across urinary bladder membranes have been made. Data have been analysed in the light of non-equilibrium thermodynamics. Maximum energy conversion efficiency (ηmax ), kinetic energy term (α1) and polarization term (α2) have been computed. It has been found that ηmax., α1, and α2, etc., are maximum for uric acid among the permeants used. Since ηmax, and α1 and α2 are related with membrane interface, such studies are relevant in understanding the comparative effect of permeants on bladder interface.

Electrokinetic energy conversion studies of urine-oxalic acid systems across urinary bladder membrane.

Electrokinetic studies of urine-oxalic acid systems with increasing concentration of oxalic acid in urine have been carried out across urinary bladder membranes. It has been found that electro-osmotic flux and streaming current decrease with increase in concentration of oxalic acid in urine while hydrodynamic flux and streaming potential increase with increase in concentration. Kinetic energy term (alpha 1) and polarizability term (alpha 2) have been computed for these systems and it has been found that polarizability decreases much faster with increase in concentration of oxalic acid in urine. Electrokinetic energy conversion of these systems have been computed and it has been found that electrokinetic energy conversion is maximum for urine and it decreases with increase in concentration of oxalic acid in urine. Poor energy conversion may lead to sluggish flushing action which may ultimately lead to formation of urinary calculi in the bladder and so present study may be of some use in predicting electrophysiology of the bladder.

Electrokinetic energy conversion studies of aqueous solutions of oxalic acid and urea across urinary bladder membranes.

Electrokinetic studies namely hydrodynamic permeability, electroosmotic permeability and streaming potential measurements of aqueous solutions of oxalic acid and urea have been made across urinary bladder membranes of goat. Energy conversion maxima and degree of coupling for these permeants have computed. It has been found that these values increase with increases in concentration of the permeants. Since electro-osmotic flux tendency is quite opposite for oxalic acid in comparison to that of urea, energy conversion values increase with increase in concentration but in opposite directions. Such studies are expected to be of use in understanding electrophysiology of the bladder as inefficient functioning of the bladder leads to formation of urinary calculi and many other types of disorders. Methodology of non-equilibrium thermodynamics have been used to explain the data.

Electrokinetic energy conversion by aqueous oxalic acid, citric acid, ascorbic acid, hippuric acid, and acetyl salicylic acid across urinary bladder membranes.

Efficiency of energy conversion for electro-osmosis and streaming potential and the degree of coupling of acids across urinary bladder membranes of goat have been computed using non-equilibrium thermodynamic theory. The energy conversion maxima and degree of coupling for acids responsible for the formation of urinary calculi are found to be much low as compared to urea and urine.

Electrokinetic energy conversion studies of aqueous solution of urea, glucose and their mixtures across urinary bladder membranes.

Electrokinetic studies of aqueous solutions of urea, glucose, urea-glucose mixture (urea concentration increasing and glucose fixed) and glucose-urea mixture (glucose concentration increasing and urea concentration fixed) have been carried out across urinary bladder membranes of goat. Results have been analysed using methodology of non-equilibrium thermodynamics. It has been found that energy conversion maxima and degree of coupling for mixtures is higher than urea and glucose solutions. It has also been found that in the case of urea-glucose mixtures, the value of maxima and degree of coupling first decreases and then increases with increase in concentration while in the case of glucose-urea mixture, the trend is not definite. With urea solutions only, both these values increase with increase in concentration. It has been observed that energy conversion maxima and degree of coupling for urine is much higher as compared to other permeants. It appears that second order phenomenological coefficient L112 is related with degree of coupling (qe) as the trend of two is quite similar.